Here's Lance Ventura's list from radioinsight.com, concerning the current watch list across the country. This gets updated periodically.
2021 Post-Christmas Format Change Rundown - RadioInsight
Revised January 3 Completed Changes 1/3 Albuquerque - Vanguard Media rebranded Regional Mexican "La Zeta 106.3" KDLW as "Exitos 106.3". 1/3 Boise - Cumulus Media Conservative Talk 670 KBOI has begun simulcasting on 93.1 KBOI-FM (formerly KTIK-FM), while 1350 KTIK adds translator 95.3 K237HA has...